Cj" Ahu: Malfunction Of Thermostat Sensor In Remote Controller - Daikin ERQ Service Manual

Troubleshooting by Indication on the Remote Controller
CJ
3.14 " " AHU: Malfunction of Thermostat Sensor in Remote
Controller
CJ
Remote
Controller
Display
Applicable
AII AHU models
Models
Method of Malfunction detection is carried out by temperature detected by remote controller air
Malfunction temperature thermistor. (Note1)
Detection
Malfunction
When the remote controller air temperature thermistor becomes disconnected or shorted while
Decision the unit is running.
Conditions
Supposed
Causes
Troubleshooting
Note: In case of remote controller thermistor malfunction, unit is still operable by suction air thermistor
on AHU.
∗ Refer to thermistor resistance / temperature characteristics table on P232.
180
Defect of remote controller thermistor
Defect of remote controller PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn power supply OFF, then
power ON again.
Is " J "
displayed on the remote
controller?
NO
YES
: http://splitoff.ru/tehn-doc.html
ESIE09-05
Replace remote controller.
External factor other than
equipment malfunction.
(for example, noise etc.)
(V2787)
Troubleshooting